Dayton Audio ES140TiA-8

• Sensitivity (1W, 1m, infinite baffle) SPL1W 83.3dB
• Frequency response 45 - 4100Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 41.7Hz
• Mechanical quality factor QMS 5.84
• Electrical quality factor QES 0.50
• Total quality factor QTS 0.46

Large signal parameters

• Maximum linear excursion xmax 5mm
• Air volume displaced at xmax VD 49cm³
• Power handling P 100W
• Program power Pmax 200W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.6Ω
• Inductance (1kHz) LE 1.03mH
• VC Diameter 75mm
• Winding material Copper Clad Aluminum
• Former material Titanium

Magnet

• Force factor Bl 8.5N/A
• Motor constant Bl/√RE 3.31N/√W
• Material Neodymium

Diaphragm

• Effective diameter 112mm
• Effective area SD 98.5cm²
• Moving mass MMS 20.9g
• Moving mass (without air load) MMD 20.1g
• Material Nomex

Suspensions

• Stiffness KMS 1.43N/mm
• Compliance CMS 700µm/N
• Equivalent volume to the compliance VAS 9.5L
• Mechanical resistance RMS 0.94N·s/m
• Surround material Rubber

Dimensions

• Nominal diameter 5.5″
• 152mm
• Overall diameter 152mm
• Baffle cutout diameter 125mm
• Overall depth 67mm
• Volume occupied by the driver (estimated) 0.33L
• Frame material Cast Aluminium